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cmd/go: document how licenses are added to modules that are nested in a repository #44758

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mdempsky opened this issue Mar 3, 2021 · 10 comments
Open

cmd/go: document how licenses are added to modules that are nested in a repository #44758

mdempsky opened this issue Mar 3, 2021 · 10 comments
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Documentation NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@mdempsky
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mdempsky commented Mar 3, 2021

https://pkg.go.dev/github.com/mit-plv/fiat-crypto/fiat-go

The fiat-crypto project is triple licensed under MIT OR Apache-2.0 OR BSD-1-Clause (https://github.com/mit-plv/fiat-crypto/blob/master/COPYRIGHT), but pkg.go.dev isn't recognizing this. It's instead saying the license isn't known.

Incidentally, it seems like maybe https://pkg.go.dev/license-policy should be updated to support BSD-1-Clause?

Related: #40171
@gopherbot gopherbot added this to the Unreleased milestone Mar 3, 2021
@mdempsky mdempsky mentioned this issue Mar 3, 2021
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@mdempsky
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mdempsky commented Mar 3, 2021

So https://pkg.go.dev/github.com/mit-plv/fiat-crypto/fiat-go@v0.0.0-20210303142032-cc0899379641/32/curve25519 now correctly shows the license, but https://pkg.go.dev/github.com/mit-plv/fiat-crypto/fiat-go@v0.0.0-20210303132348-f524ab755084/32/curve25519 still doesn't. Presumably this is because of mit-plv/fiat-crypto@d12f145.

For repos where there's no go.mod at the top level, is it expected that the copyright files have to be explicitly duplicated into the go.mod-containing subdirectory? That seems surprising to me.

@julieqiu
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julieqiu commented Mar 3, 2021

For repos where there's no go.mod at the top level, is it expected that the copyright files have to be explicitly duplicated into the go.mod-containing subdirectory?

Yes, pkg.go.dev fetches modules from proxy.golang.org, and those license files are not in https://proxy.golang.org/github.com/mit-plv/fiat-crypto/fiat-go/@v/v0.0.0-20210303132348-f524ab755084.zip.

Incidentally, it seems like maybe https://pkg.go.dev/license-policy should be updated to support BSD-1-Clause?

Yup, BSD-1-Clause should listed on https://pkg.go.dev/license-policy. Thanks for catching.

@gopherbot
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Change https://golang.org/cl/298289 mentions this issue: internal/licenses: add BSD-1-Clause

@julieqiu julieqiu modified the milestones: Unreleased, pkgsite/unplanned Mar 3, 2021
@mdempsky
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mdempsky commented Mar 3, 2021 •
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Why does https://proxy.golang.org/golang.org/x/tools/gopls/@v/v0.6.6.zip contain ./golang.org/x/tools/gopls@v0.6.6/LICENSE when that file does not appear in https://github.com/golang/tools/tree/master/gopls (or https://github.com/golang/tools/tree/gopls/v0.6.6/gopls)?

@julieqiu
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julieqiu commented Mar 3, 2021

My understanding is that files named LICENSE in the top level module (golang.org/x/tools in this case) will be added its nested modules (golang.org/x/tool/gopls). Related: #43817

/cc @katiehockman @heschik @hyangah

@mdempsky
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mdempsky commented Mar 3, 2021

Reading through that issue, I understand the difficulties now. Thanks.

Is this behavior documented somewhere? The inconsistency here seems pretty surprising to me.

@julieqiu
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julieqiu commented Mar 3, 2021

Not that I know of.

/cc @stevetraut @bcmills @jayconrod @matloob who might be working on documentation for this.

gopherbot pushed a commit to golang/pkgsite that referenced this issue Mar 3, 2021
@julieqiu
internal/licenses: add BSD-1-Clause
18382ef 
For golang/go#44758

Change-Id: I95113cda4ce0b071e44c5a75b676e28a7d3d508a
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/298289
Trust: Julie Qiu <julie@golang.org>
Run-TryBot: Julie Qiu <julie@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
@julieqiu julieqiu changed the title x/pkgsite: no license detected for github.com/mit-plv/fiat-crypto/fiat-go cmd/go: document how licenses are added to modules that are nested in a repository Mar 3, 2021
@julieqiu julieqiu added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Documentation and removed pkgsite labels Mar 3, 2021
@julieqiu julieqiu modified the milestones: pkgsite/unplanned, Unreleased Mar 3, 2021
@jayconrod
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This probably should be documented, at least in https://golang.org/ref/mod. Anywhere else?

@julieqiu
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julieqiu commented Mar 3, 2021

It might also be useful to add this to the FAQ of https://proxy.golang.org.

@mdempsky
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mdempsky commented Mar 4, 2021

FWIW, I notice that https://pkg.go.dev/github.com/mit-plv/fiat-crypto/fiat-go?tab=licenses lists MIT and Apache 2, but not BSD-1. I guess that's because it's in a LICENSE-BSD file, which pkgsite doesn't look for.

Is it possible to have that added too? Or maybe pkgsite should check any file in the root directory that matches "\bLICEN[CS]E\b"?

lrewega added a commit to lrewega/zap that referenced this issue Nov 27, 2023
@lrewega
Rename license file to satisfy go docs for nested modules
b006e20 
The documentation for module `uber.go/zap/exp` is not eligible to be
rendered on pkg.go.dev as no license is detected. For example,
https://pkg.go.dev/go.uber.org/zap/exp@v0.2.0/zapslog will not render.

This is due to some possibly unfortunate behavior in the Go command that
special cases copying a `LICENSE` file from the repository for root for
any nested modules lacking a `LICENSE` file. This is problematic for Zap
as Zap's license is in a file named `LICENSE.txt`. Renaming the license
file to `LICENSE` remedies the issue.

Relevant issues:
- golang/go#43817 (comment)
- golang/go#44758 (comment)
@lrewega lrewega mentioned this issue Nov 27, 2023
Merged
r-hang pushed a commit to uber-go/zap that referenced this issue Nov 27, 2023
@lrewega
Rename license file to satisfy go docs for nested modules (#1389)
5acd569 
The documentation for module `uber.go/zap/exp` is not eligible to be
rendered on pkg.go.dev as no license is detected. For example,
https://pkg.go.dev/go.uber.org/zap/exp@v0.2.0/zapslog will not render.

This is due to some possibly unfortunate behavior in the Go command that
special cases copying a `LICENSE` file from the repository for root for
any nested modules lacking a `LICENSE` file. This is problematic for Zap
as Zap's license is in a file named `LICENSE.txt`. Renaming the license
file to `LICENSE` remedies the issue.

Relevant issues:
- golang/go#43817 (comment)
- golang/go#44758 (comment)
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